Right now

Temp9°C

Wind16 km/h

Gusts24 km/h

Humidity96.9%

Rain 48hdry

Last rainNone recent

Assessment

No recent rain

Humidity 95% — likely fog/cloud

Good friction temperature range for granite

High humidity (96.9%) — granite friction compromised, particularly for bouldering

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Saturday 31 October

Poor

Temp9°C

Raindry

Wind15 km/h

Gusts24 km/h

Humidity95%

No recent rainHumidity 95% — likely fog/cloud

Time °C Rain Wind (km/h) Gust Hum

10:00 9° dry 16 — 96.9%

11:00 9° dry 17 — 96.1%

12:00 9° dry 16 — 95.5%

13:00 9° dry 16 — 95.1%

14:00 9° dry 14 — 94.1%

15:00 9° dry 12 — 93.7%

16:00 9° dry 11 — 92.2%

17:00 9° dry 9 — 88.4%

18:00 9° dry 12 — 88.7%

19:00 9° dry 14 — 79.9%

20:00 9° dry 17 — 76.1%

21:00 9° dry 16 — 76.8%

Sun Sunday 1 November

Caution

Temp10°C

Raindry

Wind6 km/h

Gusts—

Humidity88%

No recent rainHumidity 88% — potential fog

Good conditions for granite

Time °C Rain Wind (km/h) Gust Hum

06:00 9° dry 12 — 93.3%

07:00 10° dry 10 — 92.8%

08:00 10° dry 4 — 89.6%

09:00 10° dry 3 — 86.8%

10:00 10° dry 2 — 86%

11:00 11° dry 6 — 85.3%

12:00 11° dry 7 — 90.5%

13:00 10° dry 8 — 90.4%

14:00 10° dry 3 — 91.4%

15:00 10° dry 9 — 86.7%

16:00 10° dry 10 — 86.5%

17:00 10° dry 9 — 89.5%

18:00 9° dry 8 — 90%

19:00 9° dry 7 — 87.3%

20:00 9° dry 8 — 85.5%

21:00 9° dry 11 — 92.5%

Mon Monday 2 November

Poor

Temp10°C

Rain2mm

Wind23 km/h

Gusts—

Humidity82%

2mm rain forecast

Good conditions for granite
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 10° dry 22 — 81.3%

07:00 10° dry 22 — 84.6%

08:00 10° dry 23 — 84.6%

09:00 10° dry 22 — 85.7%

10:00 10° dry 23 — 83.9%

11:00 10° dry 24 — 82.2%

12:00 10° dry 25 — 81.3%

13:00 10° dry 25 — 81.2%

14:00 10° dry 23 — 79.7%

15:00 10° dry 21 — 80.3%

16:00 10° 0.6mm 18 — 83.4%

17:00 10° 0.6mm 17 — 86.8%

18:00 10° 0.4mm 17 — 89.3%

19:00 10° 0.4mm 14 — 90.1%

Tue Tuesday 3 November

Good

Temp8°C

Raindry

Wind17 km/h

Gusts—

Humidity78%

Should be dry

Time °C Rain Wind (km/h) Gust Hum

07:00 8° dry 22 — 85.7%

13:00 8° dry 17 — 77.5%

19:00 8° dry 16 — 73.8%

Wed Wednesday 4 November

Good

Temp9°C

Raindry

Wind7 km/h

Gusts—

Humidity77%

Should be dry

Time °C Rain Wind (km/h) Gust Hum

07:00 8° dry 12 — 84.8%

13:00 9° dry 7 — 77.2%

19:00 8° dry 9 — 81.5%

Thu Thursday 5 November

Good

Temp9°C

Raindry

Wind16 km/h

Gusts—

Humidity83%

Should be dry

Time °C Rain Wind (km/h) Gust Hum

07:00 8° dry 17 — 89.9%

13:00 9° dry 16 — 83.1%

19:00 9° dry 14 — 84.7%

Fri Friday 6 November

Good

Temp8°C

Raindry

Wind10 km/h

Gusts—

Humidity75%

Should be dry

Time °C Rain Wind (km/h) Gust Hum

07:00 7° dry 12 — 84.9%

13:00 8° dry 10 — 75.2%

19:00 7° dry 10 — 76%

Sat Saturday 7 November

Good

Temp9°C

Raindry

Wind13 km/h

Gusts—

Humidity71%

Should be dry

Time °C Rain Wind (km/h) Gust Hum

07:00 6° dry 13 — 77.4%

13:00 9° dry 13 — 71.3%

19:00 7° dry 13 — 74.5%

About Hammerknuden

Hammerknuden (also Hammeren — "hammerhead-shaped crag of granite") is the protected granite promontory at the northern tip of Bornholm, and the island's most popular climbing venue. The Danish Nature Agency officially recommends four climbing sites here — two at Lindesdal on the western face and two at Opalsøen near the old quarry lake. Rock is the same Precambrian Bornholm golden granite as Vang, but the promontory position gives fuller Baltic exposure. North-west aspect means the wall is in shade most of the day with evening light — good friction, cooler feel on warm summer days. Coastal flag applies for onshore-wind spray warnings. Weather shared with Vang via anchor.

Region: Bornholm
Rock type: Granite
Aspect: north-west-facing
Altitude: 40m
Exposure: high
Seepage: low

Other crags in this region

Vang